This page lists cards that are known to exist, but which have not been shown in any Yu-Gi-Oh! media.
"Dark Knight" and "White Knight"
However, it is seen in the Toei anime.
"Ultimate Perfect Great Moth"
The card has been released in other media, where its English name is "Perfectly Ultimate Great Moth".
"Puppet Bishop" and "Puppet Knight"
These Monster Cards are mentioned in the card text of "Promotion" as cards that can be Summoned with that card's effect by Tributing a "Puppet Pawn". Their names are presumably prefixed by "Puppet" (since all other cards named in the card text are prefixed by Puppet despite not being so on the card text), though they are only referred to as Bishop (ビショップ, Bishoppu) and Knight (ナイト, Naito) on the card.
This token is listed in the lore of "Nine-Tailed Fox", but it was not Summoned.
"Thunder Mountain" and "Rolling Thunder"
"The Eye of Timaeus" and "Poison Butterfly" fusion
"Ojamachine Green" and "Ojamachine Black"
"Ojamachine Green" (おジャマシーン・グリーン, Ojamashīn Gurīn) and "Ojamachine Black" (おジャマシーン・ブラック, Ojamashīn Burakku) are mentioned in the card text of "Mecha Ojama King". Nothing is known about them, apart from the fact that they can be Summoned by the effect of "Mecha Ojama King".
"Mystic Baby Knight" and "Mystic Baby Magician"
"Colorless, Chaos King of Dark World" and "Wicked Rune - Doubt"
Both cards were mentioned by Brron during his Duel with Jaden Yuki. The first card is as a monster that Brron intended to Summon with the effect of "Super Polymerization". Apart from that it is apparently a Fusion Monster, nothing is known about it, as Brron failed to complete the "Wicked Canon" to activate "Super Polymerization". The second one has the same effect as the other "Wicked Rune" cards. It was supposed to be the final part of completing "Super Polymerization", but wasn't played since Syrus escaped from Brron's minions.
"Super Fusion God"
This Monster Card is mentioned as a monster Yubel intends to Summon to unite the twelve Duel Spirit Dimensions into one. Yubel uses "Super Polymerization" and "Chain Material" to fuse one monster of each Level from 1 to 12 into this monster, but Jaden chains "Spiritual Fusion", fusing the souls of Yubel and himself instead.
"Cosmic Blazar Dragon"
This card is mentioned on the visual screen of the Augmented Reality Duel. It is a WATER Fish/Effect monster, Level 6, ATK 1200, DEF 1400. Its effect is: When this card is destroyed by battle and sent to the Graveyard, send 1 Fish-Type Monster from your Deck to the Graveyard. Then, you can Special Summon 2 "Deep Anglerfish Jr." from your Deck.
"Deep Anglerfish Jr."
This Monster Card is only mentioned in the card text of "Deep Anglerfish", which has never been seen either.
"Pink Peach Dragon"
"The Closed Eight"
This card was mentioned in preview shown on NAS's official site for episode 131 of Yu-Gi-Oh! ZEXAL. A character named Alco would have given the card to Kite, who would have attempted to pass the card to Yuma. Ultimately, neither Alco nor this card ever appeared.
"Number 5: Doom Chimera Dragon"
"Millennium Thousand-Eyes Virus"
This card was stated by Kevin Tewart to be the best card in the game, and that only he possesses it. He has also stated that like the Upper Deck Entertainment "The Seal of Orichalcos", it is not permitted in official tournaments. The name itself appears to reference Thousand-Eyes Restrict and Crush Card Virus; two cards which were already considered some of the best at the time.
- ↑ Yu-Gi-Oh! Duelist Duel 3: "Countdown!!"
- ↑ Yu-Gi-Oh! Duelist Duel 5: "Fate on the High Seas!!"
- ↑ Yu-Gi-Oh! R Duel Round 19: "Jonouchi... Helpless?!"
- ↑ Yu-Gi-Oh! ZEXAL Rank 14: "Victory Conditions!!"
- ↑ Yu-Gi-Oh! episode 162: "On the Wrong Track - Part 3"
- ↑ Yu-Gi-Oh! GX episode 54: "Champion or Chazz-Been?"
- ↑ Yu-Gi-Oh! GX episode 103: "The Hands of Justice, Part 2"
- ↑ Yu-Gi-Oh! GX episode 136: "Turning the Page, Part 2"
- ↑ Yu-Gi-Oh! GX episode 155: "Return of the Supreme King, Part 3"
- ↑ Yu-Gi-Oh! 5D's episode 149: "The Revived Hero"
- ↑ 11.0 11.1 11.2 Yu-Gi-Oh! ZEXAL episode 1: "Go With the Flow, Part 1"
- ↑ pojo.biz What do you think is the best card in the game?
- ↑ pojo.biz After reading Jae's article/responses. Flaming will be dealt with SEVERELY